Pith Number

pith:43EY2J37

pith:2011:43EY2J37ULIAYD2YVQUUINU2YQ

not attested not anchored not stored refs pending

Variational Splines and Paley--Wiener Spaces on Combinatorial Graphs

Isaac Pesenson

arxiv:1111.5897 v1 · 2011-11-25 · cs.IT · math.IT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{43EY2J37ULIAYD2YVQUUINU2YQ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:07:41.518803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6c98d277fa2d00c0f58ac2944369ac404ce0d7e16498836effca22638840601

Aliases

arxiv: 1111.5897 · arxiv_version: 1111.5897v1 · doi: 10.48550/arxiv.1111.5897 · pith_short_12: 43EY2J37ULIA · pith_short_16: 43EY2J37ULIAYD2Y · pith_short_8: 43EY2J37

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/43EY2J37ULIAYD2YVQUUINU2YQ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: e6c98d277fa2d00c0f58ac2944369ac404ce0d7e16498836effca22638840601

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f05fb34f6368a1fa0b6f0ac7fd6ad7b66bda649a99777c4ffde0a71e06d4f39",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-11-25T06:13:14Z",
    "title_canon_sha256": "755b12b0dc15beb697943ef103b0cf8dd115e43bf74853a6ef91bb7ce29df336"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.5897",
    "kind": "arxiv",
    "version": 1
  }
}